In one form of this process, unwanted silanol interactions can be prevented by using end-capping. Another form of this technique may employ a layer of sand to absorb the shock of pouring in the eluent. The retardation factor is calculated as the ratio of the distances traveled by the analyte and the solvent front in the thin-layer form of this technique. With liquid, gas, and column types, this term describes any technique wherein a mobile phase 
In one form of this process, unwanted silanol interactions can be prevented by using end-capping. Another form of this technique may employ a layer of sand to absorb the shock of pouring in the eluent. The retardation factor is calculated as the ratio of the distances traveled by the analyte and the solvent front in the thin-layer form of this technique. With liquid, gas, and column types, this term describes any technique wherein a mobile phase is passed through a stationary phase, such as a strip of filter paper. For 10 points, name this method of separating mixtures, which may be used to separate the pigments in a colored marker.
In one form of this process, unwanted silanol interactions can be prevented by using end-capping.
{chromatography} [accept {reversed}-{phase High Performance Liquid Chromatography within} first sentence]